Where to find the Windows 8 Product ID (PID)

Solution 1:

To find the PID, you need to go to your System page, which can be done by one of three ways:

1. Go to Control Panel\All Control Panel Items\System by copy-pasting this into the “address bar” of an Explorer window.

2. Press Win + X and click on Control Panel. After this, go to System.

3. Use the desktop Charm to go to Control Panel. Go to System afterwards.

Or do as @avirk and press Win + Break/Pause.

In here, you will find the information you need at the bottom:

Solution 2:

Just press the Win+PauseBreak and you will able to see the sytem information windows and at the bottom you will see the Product ID of Windows.